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Rooftop bug collectors find climate change already affecting species

6 November, 2015

In 1992, Ole Karsholt and Jan Pedersen started collecting bugs in light traps on the roof of the Natural History Museum of Denmark in Copenhagen. A quarter-million bugs later, their data on 1543 species of moths and beetles provides astounding evidence that the we don’t need to wait for 2°C of warming before seeing significant effects of temperature change on the insect Community.